Magnetic oil tank reforming drill sleeve

By modifying the drill bushing with a magnetic oil tank, the problems of cumbersome installation and disassembly and time-consuming positioning of traditional drill bushings are solved, enabling rapid installation, precise positioning and safe production, and adapting to different hole diameter requirements.

CN224463757UActive Publication Date: 2026-07-07HEILONGJIANG TRAFFIC INVESTMENT MAINTENANCE TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEILONGJIANG TRAFFIC INVESTMENT MAINTENANCE TECH CO LTD
Filing Date
2025-07-07
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Traditional fuel tank drill bushings are cumbersome and time-consuming to install, disassemble, and position, which affects production efficiency and can easily damage the surface of the fuel tank.

Method used

The drill bushing is modified using a magnetic oil tank, which utilizes magnetic components and a crosshair laser emitter to achieve rapid installation and precise positioning. It can also adapt to different hole diameter requirements through chip removal grooves and adjustable inner diameter sleeves.

Benefits of technology

It enables quick disassembly and secure installation without damaging the surface of the fuel tank, while improving production efficiency and safety, and ensuring processing quality and equipment life.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224463757U_ABST
    Figure CN224463757U_ABST
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Abstract

The utility model relates to the field of oil tank drilling, disclose a kind of magnetic oil tank reconstruction drill sleeve, including shell, the shell central position is provided with center cylinder drill bushing, and shell both sides are respectively fixedly installed with transmission assembly, the both sides of shell inside are respectively fixedly installed with magnetic attraction subassembly, and each magnetic attraction subassembly one end is respectively fixedly connected with the middle part of mutually close one end of transmission assembly, the transmission assembly mutually far away one end is respectively fixedly connected with handle, and center cylinder drill bushing side wall is fixedly installed with cross line type laser emitter, the both sides of center cylinder drill bushing are symmetrically provided with chip groove, and shell outside is fixedly installed with the switch of cross line type laser emitter electric connection, the utility model's structure uses the mode of magnetic attraction, so that dismounting is convenient, installation is reliable and will not damage oil tank surface, positioning is accurate and improves production efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of oil tank drilling, specifically a magnetic oil tank modification drill sleeve. Background Technology

[0002] In cold regions, dual-chamber fuel tanks store low-pour-point and conventional fuels separately in separate chambers. The low-pour-point fuel is preheated, and once the temperature meets the requirements for conventional fuel, it automatically switches to conventional fuel. This switching method effectively reduces fuel costs for vehicles operating at low temperatures. The drilling process is crucial to the production of dual-chamber fuel tanks, directly affecting their sealing and performance. Without drill bushings, the drill bit lacks effective guidance and is prone to misalignment upon contact with the material. Currently, traditional drill bushings used in the industry have certain drawbacks in practical applications: 1. In terms of installation and disassembly, most drill bushings rely on bolt fastening or snap-fit ​​structures. Fastening requires repeated tightening and loosening of multiple bolts using tools such as wrenches and screwdrivers, resulting in a lengthy process and a risk of insecure installation leading to drill bushing misalignment or over-tightening damaging the fuel tank surface; 2. In terms of drill point positioning, traditional drill bushings often use simple reference surface bonding or pin positioning methods. These methods are cumbersome, requiring repeated manual measurement and adjustment of the drill bushing position, which is time-consuming and significantly impacts production efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a magnetic oil tank modification drill sleeve to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a magnetic oil tank modification drill sleeve, comprising a housing, a central cylindrical drill sleeve disposed at the center of the housing, and transmission components fixedly installed on both sides of the housing, magnetic components fixedly installed on both sides inside the housing, and one end of each magnetic component being fixedly connected to the middle of the transmission component at a point close to each other, and a handle being fixedly connected to the ends of the transmission components at a point far from each other, and a crosshair laser emitter fixedly installed on the side wall of the central cylindrical drill sleeve, and chip removal grooves symmetrically opened on both sides of the central cylindrical drill sleeve, and a switch electrically connected to the crosshair laser emitter being fixedly installed on the outside of the housing.

[0005] Preferably, the transmission assembly includes second gear shafts symmetrically arranged on both sides of the housing, and each second gear shaft is rotatably connected to the side wall of the housing via a second bearing.

[0006] Preferably, a second gear is sleeved and fixed on the outer side of each second gear shaft, and a first gear meshing with it is provided on both sides of each housing. Two first gear shafts are arranged in parallel inside the housing, and each first gear shaft is rotatably connected to the side wall of the housing through a first bearing on both sides.

[0007] Preferably, each of the first gear shafts has a first gear fixedly fitted on both sides, and each magnetic attraction component includes a ferromagnetic metal block fixedly installed on the inner wall of the housing, with a permanent magnet rotatably disposed at the center of each ferromagnetic metal block.

[0008] Preferably, each of the ferromagnetic metal blocks has an antimagnetic metal block embedded and fixedly installed at its top and bottom, and the two permanent magnets are respectively fixedly connected to one end of the second gear shaft at opposite ends.

[0009] Preferably, a top cover is fixedly installed on the top of the housing, and a crosshair laser emitter is embedded and inclined along the side wall of the central cylindrical drill sleeve, with the output end of the crosshair laser emitter pointing to the center of the bottom of the central cylindrical drill sleeve.

[0010] Compared with the prior art, the advantages of this utility model are as follows:

[0011] The device of this utility model adopts a magnetic attraction method, which makes disassembly convenient, installation reliable and will not damage the surface of the oil tank. At the same time, it can achieve precise positioning of the drilling point, improving production efficiency. The chip removal groove can remove iron chips in time during operation to prevent damage to processing quality, equipment life and operation safety. In addition, different inner diameter sleeves can be added to adapt to the needs of different hole diameters. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model;

[0013] Figure 2 Two schematic diagrams illustrating the three-dimensional structure of this utility model;

[0014] Figure 3 This is a central sectional view of the present invention.

[0015] In the diagram: 1. Housing; 2. Central cylindrical drill bushing; 3. Transmission assembly; 4. First gear shaft; 5. Second gear shaft; 6. Magnetic suction assembly; 7. Top cover; 8. Crosshair laser emitter; 9. Chip removal groove; 10. Switch; 11. Second gear; 12. First gear; 13. First bearing; 14. Handle; 15. Second bearing; 16. Permanent magnet; 17. Ferromagnetic metal block; 18. Antimagnetic metal block. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example

[0018] Please see Figures 1-3 The illustration shows a magnetic oil tank modification drill sleeve, including a housing 1, a central cylindrical drill sleeve 2 at the center of the housing 1, and transmission components 3 fixedly installed on both sides of the housing 1. Magnetic components 6 are fixedly installed on both sides inside the housing 1, with one end of each magnetic component 6 fixedly connected to the middle of the transmission component 3 at a point close to each other. Handles 14 are fixedly connected to the ends of the transmission components 3 at points far apart from each other. A crosshair laser emitter 8 is fixedly installed on the side wall of the central cylindrical drill sleeve 2. Chip removal grooves 9 are symmetrically opened on both sides of the central cylindrical drill sleeve 2, and a switch 10 electrically connected to the crosshair laser emitter 8 is fixedly installed on the outside of the housing 1.

[0019] In this embodiment, the transmission assembly 3 includes second gear shafts 5 symmetrically arranged on both sides of the housing 1, with each second gear shaft 5 having a second bearing 15 rotatably penetrating the side wall of the housing 1 on its outer side. A second gear 11 is sleeved and fixed on the outer side of each second gear shaft 5, and a first gear 12 meshing with it is provided on both sides of each housing 1. Two first gear shafts 4 are arranged parallel inside the housing 1, with each first gear shaft 4 having a first bearing 13 rotatably penetrating the side wall of the housing 1 on both sides. A first gear 12 is sleeved and fixed on both sides of each first gear shaft 4. Each magnetic attraction assembly 6 includes a ferromagnetic metal block 17 fixedly installed on the inner wall of the housing 1, with a permanent magnet rotatably disposed at the center of each ferromagnetic metal block 17. Magnet 16, each ferromagnetic metal block 17 has an antimagnetic metal block 18 embedded and fixedly installed at its top and bottom, and the two permanent magnets 16 are respectively fixedly connected to one end of the second gear shaft 5 at opposite ends. The top of the housing 1 is fixedly installed with a top cover 7, and the cross-shaped laser emitter 8 is embedded and inclined along the side wall of the central cylindrical drill sleeve 2. The output end of the cross-shaped laser emitter 8 points to the center of the bottom of the central cylindrical drill sleeve 2. The center of the top cover 7 has a through hole that matches the central cylindrical drill sleeve 2. The two side walls of the housing 1 have circular grooves that match the first gear shaft 4 and the second gear shaft 5, and the first gear shaft 4 and the second gear shaft 5 are rotatably connected to the corresponding circular grooves of the housing 1 through the first bearing 13 and the second bearing 15, respectively.

[0020] Furthermore, when the operator rotates one of the handles 14, the torque applied to the handle 14 is transmitted to the permanent magnet 16 in the magnetic attraction assembly 6 via the second gear shaft 5, causing the permanent magnet 16 to rotate. Simultaneously, the second gear 11 fixedly mounted on the outside of the second gear shaft 5, through two meshing first gears 12 and the first gear shaft 4, drives the two first gears 12 on the other side to rotate. Then, through the transmission of the meshing second gear 11, the permanent magnet 16 in the other magnetic attraction assembly 6 also rotates at the same angle and in the same direction. A boss matching the groove of the permanent magnet 16 is provided on the side of the second gear shaft 5 that contacts the permanent magnet 16 in the magnetic attraction assembly 6. This allows the cylindrical permanent magnets 16 on both sides to rotate simultaneously when only one handle 14 is rotated, thus attracting and releasing the fuel tank. The middle part of the magnetic attraction assembly 6 contains a radially magnetized cylindrical permanent magnet 16, with a groove at one end that fits into the boss of the second gear shaft 5. The permanent magnet 16 has magnetically conductive surfaces on both sides. The device consists of a high-efficiency ferromagnetic metal block 17 and two antimagnetic metal blocks 18 on either side of the permanent magnet 16, which are respectively embedded in the grooves of the housing 1 and the top cover 7. When the device is to appear open, simply rotate the handle 14 so that the N and S poles of the permanent magnet 16 are vertically aligned, one above the other. The magnetic lines of force form closed loops in the ferromagnetic metal blocks 17 on both sides, thus not exhibiting magnetism externally. When the device is to appear closed, rotate the handle so that the N and S poles of the permanent magnet 16 are vertically aligned, one above the other. The components are positioned horizontally, one on the left and one on the right. Because of the presence of two antimagnetic metal blocks 18 on the top and bottom sides, the magnetic circuit is blocked, and magnetic lines of force cannot form a closed loop within the ferromagnetic metal block 17. Since the oil tank material is also a ferromagnetic metal block with high magnetic permeability, the magnetic lines of force can concentrate and efficiently pass through the oil tank's adsorption surface, forming a closed loop and generating a strong adsorption force with the oil tank. This firmly attaches the device to the oil tank surface. The use of magnetic attraction makes disassembly convenient, installation secure, and prevents damage to the oil tank surface.

[0021] Furthermore, a crosshair laser emitter 8 is installed on the side wall of the central cylindrical drill sleeve 2, with its tilt angle facing the bottom center of the central cylindrical drill sleeve 2. It is electrically connected to a switch 10 placed on the outer wall of the housing 1. When the device is in contact with the oil tank, the switch 10 is turned on, and two mutually perpendicular intersecting lines are projected onto the surface of the oil tank. The intersection point is the center of the circle. The moving device makes the intersection point coincide with the drilling point to achieve precise positioning and improve production efficiency. Chip removal grooves 9 are provided on both sides of the bottom of the drill sleeve hole of the central cylindrical drill sleeve 2. During the operation, the iron chips can be discharged in time to prevent damage to the processing quality, equipment life and operation safety. In addition, sleeves with different inner diameters can be added to meet the needs of different hole diameters.

[0022] The working principle of this utility model is as follows: When the operator rotates the handle 14 on one side, the torque applied to the handle 14 is transmitted to the permanent magnet 16 in the magnetic attraction assembly 6 via the second gear shaft 5, causing the permanent magnet 16 to rotate. Simultaneously, the second gear 11 fixedly mounted on the outside of the second gear shaft 5, through two meshing first gears 12 and the first gear shaft 4, drives the two first gears 12 on the other side to rotate. Then, through the transmission of the meshing second gear 11, the permanent magnet 16 in the magnetic attraction assembly 6 on the other side also rotates at the same angle and in the same direction. A recessed part is provided on the side of the second gear shaft 5 that contacts the permanent magnet 16 in the magnetic attraction assembly 6. The matching boss in the slot allows the cylindrical permanent magnets 16 on both sides to rotate simultaneously when one side of the handle 14 is turned, thus attracting and releasing the oil tank. The magnetic attraction component 6 has a radially magnetized cylindrical permanent magnet 16 in the middle, with a groove at one end that fits into the boss of the second gear shaft 5. The permanent magnet 16 has two ferromagnetic metal blocks 17 with high magnetic permeability on one side and two antimagnetic metal blocks 18 on the other two sides, which are respectively embedded in the grooves of the housing 1 and the top cover 7. When the device is to be released, simply turn the handle 14 to make the N pole and S pole of the permanent magnet 16 vertically distributed one above the other, so that the magnetic lines of force are respectively on the two A closed loop is formed in the ferromagnetic metal block 17 on the side, and it does not exhibit magnetism externally. When you want the device to exhibit attraction externally, turn the handle so that the N and S poles of the permanent magnet 16 are horizontally positioned to the left and right. Because there are two antimagnetic metal blocks 18 on the upper and lower sides, the magnetic circuit is blocked, and the magnetic lines of force cannot form a closed loop in the ferromagnetic metal block 17. Since the material of the oil tank to be attracted is also a ferromagnetic metal block with high magnetic permeability, the magnetic lines of force can be concentrated and efficiently passed through the adsorption surface of the oil tank to form a closed loop, generating a strong attraction force with the oil tank, and firmly adsorbing the device onto the surface of the oil tank. The use of magnetic attraction makes disassembly and disassembly convenient, installation reliable, and will not damage the oil tank. On the surface, a crosshair laser emitter 8 is set on the side wall of the central cylindrical drill sleeve 2, with the tilt angle facing the bottom center of the central cylindrical drill sleeve 2. It is electrically connected to the switch 10 placed on the outer wall of the housing 1. When the device is in contact with the oil tank, the switch 10 is turned on, and two mutually perpendicular intersecting lines are projected on the surface of the oil tank. The intersection point is the center of the circle. The moving device makes the intersection point coincide with the drill point to achieve precise positioning and improve production efficiency. Chip removal grooves 9 are set on both sides of the bottom of the drill sleeve hole of the central cylindrical drill sleeve 2. During the operation, the iron chips can be discharged in time to prevent damage to the processing quality, equipment life and operation safety. In addition, different inner diameter sleeves can be added to adapt to the needs of different hole diameters.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A magnetic oil tank modification drill sleeve, comprising a housing (1), characterized in that: A central cylindrical drill sleeve (2) is provided at the center of the housing (1), and transmission components (3) are fixedly installed on both sides of the housing (1). Magnetic components (6) are fixedly installed on both sides inside the housing (1), and one end of each magnetic component (6) is fixedly connected to the middle of the transmission component (3) at one end close to each other. A handle (14) is fixedly connected to the end of each transmission component (3) at one end far from each other. A cross-shaped laser emitter (8) is fixedly installed on the side wall of the central cylindrical drill sleeve (2). Chip removal grooves (9) are symmetrically opened on both sides of the central cylindrical drill sleeve (2), and a switch (10) electrically connected to the cross-shaped laser emitter (8) is fixedly installed on the outside of the housing (1).

2. The magnetic oil tank modification drill sleeve according to claim 1, characterized in that: The transmission assembly (3) includes second gear shafts (5) symmetrically arranged on both sides of the housing (1), and each second gear shaft (5) is rotatably connected to the side wall of the housing (1) through a second bearing (15).

3. The magnetic oil tank modification drill sleeve according to claim 2, characterized in that: Each second gear shaft (5) is fitted with a second gear (11) on its outer side, and each housing (1) is provided with a first gear (12) meshing with it on both sides. Two first gear shafts (4) are arranged in parallel inside the housing (1), and each first gear shaft (4) is rotatably connected to the side wall of the housing (1) through a first bearing (13) on both sides.

4. The magnetic oil tank modification drill sleeve according to claim 3, characterized in that: Each of the first gear shafts (4) is fitted with a first gear (12) on both sides, and each magnetic assembly (6) includes a ferromagnetic metal block (17) fixedly installed on the inner wall of the housing (1), and a permanent magnet (16) is rotatably provided at the center of each ferromagnetic metal block (17).

5. The magnetic oil tank modification drill sleeve according to claim 4, characterized in that: Each of the ferromagnetic metal blocks (17) has an antimagnetic metal block (18) embedded and fixedly installed at its top and bottom, and two permanent magnets (16) are respectively fixedly connected to one end of the second gear shaft (5) at one end away from each other.

6. The magnetic oil tank modification drill sleeve according to claim 5, characterized in that: The top of the housing (1) is fixedly installed with a top cover (7), and the cross-shaped laser emitter (8) is embedded and inclined along the side wall of the central cylindrical drill sleeve (2). The output end of the cross-shaped laser emitter (8) points to the center of the bottom of the central cylindrical drill sleeve (2).